bridges/source/jni_uno/jni_bridge.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <atomic>
  25 #include <cstddef>
  26
  27 #include "jni_base.h"
  28 #include "jni_helper.h"
  29
  30 #include <osl/diagnose.h>
  31
  32 #include <uno/mapping.h>
  33 #include <uno/dispatcher.h>
  34
  35 #include <com/sun/star/uno/XInterface.hpp>
  36
  37
  38 namespace jni_uno
  39 {
  40
  41 class JNI_info;
  42 struct Bridge;
  43
  44 struct Mapping : public uno_Mapping
  45 {
  46     Bridge * m_bridge;
  47 };
  48
  49 // Holds environments and mappings:
  50 struct Bridge
  51 {
  52     mutable std::atomic<std::size_t> m_ref;
  53
  54     uno_ExtEnvironment *        m_uno_env;
  55     uno_Environment *           m_java_env;
  56
  57     Mapping                     m_java2uno;
  58     Mapping                     m_uno2java;
  59     bool                        m_registered_java2uno;
  60
  61     ~Bridge();
  62     explicit Bridge(
  63         uno_Environment * java_env, uno_ExtEnvironment * uno_env,
  64         bool registered_java2uno );
  65
  66     void acquire() const;
  67     void release() const;
  68
  69     // jni_data.cxx
  70     void map_to_uno(
  71         JNI_context const & jni,
  72         void * uno_data, jvalue java_data,
  73         typelib_TypeDescriptionReference * type,
  74         JNI_type_info const * info /* maybe 0 */,
  75         bool assign, bool out_param,
  76         bool special_wrapped_integral_types = false ) const;
  77     void map_to_java(
  78         JNI_context const & jni,
  79         jvalue * java_data, void const * uno_data,
  80         typelib_TypeDescriptionReference * type,
  81         JNI_type_info const * info /* maybe 0 */,
  82         bool in_param, bool out_param,
  83         bool special_wrapped_integral_types = false ) const;
  84
  85     // jni_uno2java.cxx
  86     void handle_uno_exc(
  87         JNI_context const & jni, uno_Any * uno_exc ) const;
  88     void call_java(
  89         jobject javaI,
  90         typelib_InterfaceTypeDescription * iface_td,
  91         sal_Int32 local_member_index, sal_Int32 function_pos_offset,
  92         typelib_TypeDescriptionReference * return_type,
  93         typelib_MethodParameter * params, sal_Int32 nParams,
  94         void * uno_ret, void * uno_args [], uno_Any ** uno_exc ) const;
  95     jobject map_to_java(
  96         JNI_context const & jni,
  97         uno_Interface * pUnoI, JNI_interface_type_info const * info ) const;
  98
  99     // jni_java2uno.cxx
 100     void handle_java_exc(
 101         JNI_context const & jni,
 102         JLocalAutoRef const & jo_exc, uno_Any * uno_exc ) const;
 103     jobject call_uno(
 104         JNI_context const & jni,
 105         uno_Interface * pUnoI, typelib_TypeDescription * member_td,
 106         typelib_TypeDescriptionReference * return_tdref,
 107         sal_Int32 nParams, typelib_MethodParameter const * pParams,
 108         jobjectArray jo_args ) const;
 109     uno_Interface * map_to_uno(
 110         JNI_context const & jni,
 111         jobject javaI, JNI_interface_type_info const * info ) const;
 112
 113     JNI_info const * getJniInfo() const;
 114 };
 115
 116 }
 117
 118 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */